The specifications of this model HP H101 true wireless earbuds are excellent. - Environmental noise reduction - Works on both Bluetooth systems and has stable connection. - The battery works on standby for more than 30 hours. This means the battery lasts for more than 30 hours and does not operate continuously for the same duration. New item, not used Prices are the cheapest Model H23C - 25 hours standby, i.e., long battery life - Updated Bluetooth 5.4 - High quality in calls - There is a permanent noise cancellation option, and this model is distinguished by that Excellent prices, I advise you to compare and not miss the opportunity. Model HD1 New earbuds with many features. - Noise cancellation - Connects to two devices at the same time - More than 36 hours standby and 18 hours of use - High-quality calls